The national political parties of the second american party system were

 The Second American Party System refers to the political party system in the United States during the first half of the 19th century, roughly from the 1820s to the 1850s. The main national political parties of the Second American Party System were:

1. The Democratic Party: Founded by Andrew Jackson and his supporters, the Democratic Party emerged from the Democratic-Republican Party which had earlier opposed the Federalist Party. The Democrats favored states' rights, opposed the Bank of the United States, and generally represented agrarian interests, small farmers, and urban workers.

 2 . The Whig Party: Formed in opposition to President Jackson and the Democrats, the Whig Party was established in the 1830s. The Whigs supported a stronger federal government, domestic manufacturing, modernization, and the Second Bank of the United States. Its base consisted of wealthier planters, urban professionals, merchants, and prosperous farmers.

These two parties dominated the American political scene during the period in question, with various third parties and independent factions also being present.